Cita APA (7th ed.)

Hummel, J. A. (1965). Vector geometry. Addison-Wesley.

Cita Chicago (17th ed.)

Hummel, James A. Vector Geometry. Reading: Addison-Wesley, 1965.

Cita MLA (9th ed.)

Hummel, James A. Vector Geometry. Addison-Wesley, 1965.